About the Product: 1. Ideal replacement to upgrade the interior of your car and replace old or missing window handle winders with this pair of Aluminum replacements. 2. Universal fit most vehicles with door handle axis size:0.39inch / 1cm round or 0.39inch / 1cm square or 0.39inch / 1cm round with 16 splines 3. Come with 3 pairs of adapter to suit many applications: 2x round fix rings(about 10mm inner diameter ). 2x square fix rings (about 10mm inner diameter). 2x round fix rings with splines(about 10mm inner diameter). 4. Material: Platinum aluminum alloy, high quality and durable, long service life. 5. Package Included: A pair of Window winders. 6x shaft adapters(3 pairs),1x Allen key, 12x screws Color: Black, Blue, Red, Silver Material: CNC machined billet aluminum Fitment: Universal fit most vehicles with door handle Come with 3 pairs of adapter to suit many applications: 2x round fix rings (about 10mm inner diameter ). 2x square fix rings (about 10mm inner diameter). 2x round fix rings with splines (about 10mm inner diameter) Universal Fit Most Vehicles w/ Door Handle Axis Size: 0.4" Round or 0.4" Square or 0.4" Round with 16 Splines. Minor modification may be required for some models